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Model Type
Cruiser
Model Type
Cruiser
MSRP
$8,299
MSRP
$14,999
Warranty
24
Warranty
24
Insurance
Insurance
Finance
Finance
Generic Type (Primary)
Cruiser
Generic Type (Primary)
Cruiser
Manufacturer Country
England
Manufacturer Country
England
Parent Company
Triumph
Parent Company
Triumph
Display Name
Speedmaster
Display Name
Rocket III
Year
2008
Year
2008
Make
Triumph
Make
Triumph
Introduction Year
-
Introduction Year
2005
Engine Type
Parallel Twin
Engine Type
Longitudinal In-Line
Cylinders
2
Cylinders
3
Engine Stroke
4-Stroke
Engine Stroke
4-Stroke
Horsepower (bhp/kW)
54 / 40.3
Horsepower (bhp/kW)
140 / 104.5
Horsepower RPM
6750
Horsepower RPM
6000
Torque (Ft Lbs/Nm)
51 / 69.1
Torque (Ft Lbs/Nm)
147 / 199.3
Torque RPM
4800
Torque RPM
2500
Cooling
Air
Cooling
Liquid
Valves
8
Valves
12
Valves Per Cylinder
4
Valves Per Cylinder
4
Valve Configuration
DOHC
Valve Configuration
DOHC
Bore (mm/in)
90 / 3.55
Bore (mm/in)
101.6 / 4
Stroke (mm/in)
68 / 2.68
Stroke (mm/in)
94.3 / 3.72
Displacement (cc/ci)
865 / 52.8
Displacement (cc/ci)
2294 / 140
Compression Ratio
9.2:1
Compression Ratio
8.7:1
Starter
Electric
Starter
Electric
Fuel Requirements
Regular
Fuel Requirements
-
Fuel Type
Gas
Fuel Type
Gas
Fuel Injector
No
Fuel Injector
Yes
Carburetor
Yes
Carburetor
No
Number Of Carburetors
2
Number Of Carburetors
-
Carburetion Type
Carburetor
Carburetion Type
Fuel Injected
Speed Governor
No
Speed Governor
No
Transmission Type
Manual
Transmission Type
Manual
Number Of Speeds
5
Number Of Speeds
5
Primary Drive (Rear Wheel)
Chain
Primary Drive (Rear Wheel)
Shaft
Primary Drive (Engine / Transmission)
Gear
Primary Drive (Engine / Transmission)
Gear
Reverse
No
Reverse
No
Wheels Composition
Aluminum
Wheels Composition
Aluminum
Tube / Tubeless
Tubeless
Tube / Tubeless
Tubeless
Front Wheel Width (in)
2.5
Front Wheel Width (in)
3.5
Rear Wheel Width (in)
3.5
Rear Wheel Width (in)
7.5
Front Tire Width
110
Front Tire Width
150
Front Tire Aspect Ratio
80
Front Tire Aspect Ratio
80
Front Wheel Diameter
18
Front Wheel Diameter
17
Rear Tire Width
170
Rear Tire Width
240
Rear Tire Aspect Ratio
80
Rear Tire Aspect Ratio
50
Rear Wheel Diameter
15
Rear Wheel Diameter
16
Front Tire (Full Spec)
110/80 R18
Front Tire (Full Spec)
150/80 R17
Rear Tire (Full Spec)
170/80 R15
Rear Tire (Full Spec)
240/50 R16
Front Brake Type
Dual Disc
Front Brake Type
Dual Disc
Front Brake Diameter (in/mm)
12.2 / 310
Front Brake Diameter (in/mm)
12.6 / 320
Rear Brake Type
Disc
Rear Brake Type
Disc
Rear Brake Diameter (in/mm)
11.2 / 285
Rear Brake Diameter (in/mm)
12.5 / 316
Brake Brand Name
-
Brake Brand Name
Brembo(R)
Front Suspension Type
Telescopic Fork
Front Suspension Type
Inverted Fork
Front Suspension Size (in/mm)
1.6 / 41
Front Suspension Size (in/mm)
1.7 / 43
Front Adjustable Fork Pre-Load
No
Front Adjustable Fork Pre-Load
No
Front Adjustable Rebound Damping
No
Front Adjustable Rebound Damping
No
Front Central Suspension Strut
No
Front Central Suspension Strut
No
Steering Damper
No
Steering Damper
No
Rear Suspension Type
Twin Sided Swing Arm
Rear Suspension Type
Twin Sided Swing Arm
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Shock / Spring Pre-Load
Yes
Rear Adjustable Rebound Damping
No
Rear Adjustable Rebound Damping
No
Number Rear Shock Absorbers
2
Number Rear Shock Absorbers
2
Rear Suspension Material
Steel
Rear Suspension Material
Steel
Air Adjustable
No
Air Adjustable
No
Steering Control
Handlebar
Steering Control
Handlebar
Length (ft)
7.94
Length (ft)
8.2
Width (in/mm)
32.7 / 830.6
Width (in/mm)
38.2 / 970.3
Height (in/mm)
45.7 / 1160.8
Height (in/mm)
45.9 / 1165.9
Wheelbase (in/mm)
65.2 / 1656.1
Wheelbase (in/mm)
66.7 / 1694.2
Length (ft/ft)
7
Length (ft/ft)
8
Length (ft/in)
11.3
Length (ft/in)
2.4
Dry Weight (lbs/kg)
504 / 228.6
Dry Weight (lbs/kg)
704 / 319.3
Fuel Capacity (gal/l)
4.4 / 16.6
Fuel Capacity (gal/l)
6.3 / 24
Engine Displacement to Weight (cc)
1.72
Engine Displacement to Weight (cc)
3.26
Seat Type
One-Piece
Seat Type
One-Piece
Adjustable
No
Adjustable
No
Seat Material
Vinyl
Seat Material
Vinyl
Seat Location
Driver and Passenger
Seat Location
Driver
Folding
No
Folding
No
Seat Height (in/mm)
28.3 / 718.8
Seat Height (in/mm)
29.1 / 739.1
Number Of Seats
2
Number Of Seats
1
Grab Rail or Strap
Standard
Grab Rail or Strap
-
Frame
Steel
Frame
Steel
Hand Grips
Standard
Hand Grips
Standard
Foot Peg Location
Driver and Passenger
Foot Peg Location
Driver
Adjustable
No
Adjustable
No
Chassis Protectors
No
Chassis Protectors
-
Drive Shaft Guard
No
Drive Shaft Guard
-
Engine Case Guard
Yes
Engine Case Guard
-
Saddle Bag Guard
No
Saddle Bag Guard
-
Belt Guard
No
Belt Guard
No
Hand Guards
No
Hand Guards
No
Brush Guard
No
Brush Guard
No
Light Guard
No
Light Guard
No
Radiator Cover
No
Radiator Cover
-
Side Cover
No
Side Cover
-
Front Fender
Standard
Front Fender
Standard
Rear Fender
Standard
Rear Fender
Standard
Top Crown
Standard
Top Crown
Standard
Stand Type
Kick
Stand Type
Kick
Handlebars
Standard
Handlebars
Standard
License Plate
Standard
License Plate
Standard
Chain Guard
-
Chain Guard
No
Fork Guards
-
Fork Guards
No
Front Fender Trim
-
Front Fender Trim
Standard
Tachometer
Standard
Tachometer
Standard
Trip Odometer
Standard
Trip Odometer
Standard
Speedometer
Standard
Speedometer
Standard
Digital Instrumentation
-
Digital Instrumentation
Standard
Fuel Level Warning Type
-
Fuel Level Warning Type
Light
Warranty (Months/Condition)
24 / Limited
Warranty (Months/Condition)
24 / Limited
Battery Warranty (Months)
0
Battery Warranty (Months)
0
Metallic
No
Metallic
No
Handlebar Lock
Standard
Handlebar Lock
Standard
Folding
Yes
Folding
Yes
Underseat Storage
Standard
Underseat Storage
-
Lockable Storage
Standard
Lockable Storage
-
Headlight Mounts
Standard
Headlight Mounts
Standard
Halogen Headlight (s)
Standard
Halogen Headlight (s)
Standard
Headlight (s)
Standard
Headlight (s)
Standard
Light Type
Halogen
Light Type
Halogen